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Finding the Fourth Proportional to 292,340.40, 437,819.40 and 198,337.20

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Solution

The fourth proportional to 292,340.40, 437,819.40 and 198,337.20 is: 297,036.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,340.40 : 437,819.40 = 198,337.20 : x
  2. Step 2: Convert to fraction form
    292,340.40/437,819.40 = 198,337.20/x
  3. Step 3: Cross multiply
    292,340.40x = 437,819.40 × 198,337.20
  4. Step 4: Simplify right side
    292,340.40x = 86,835,873,901.68
  5. Step 5: Solve for x
    x = 86,835,873,901.68/292,340.40
  6. Step 6: Final answer
    x = 297,036.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.